11.7 new ScannerSystem.in

import java.util.Scanner;
public class HelloWorld {
    public static void main(String []args){
        double rmb;
        double dollar;
        Scanner data;
 
        data = new Scanner(System.in);
        System.out.println("rmb:");
        rmb = data.nextDouble();
        dollar = 6.7 * rmb;
        System.out.println("dollar:" + dollar);
        System.exit(0);
 
    }
}